Global warming confirmed, man the culprit

Just published a major climate study called Berkeley Earth Surface Temperature conducted by physics professor and ex-skeptic of global warming – Richard Muller. The research he conducted to eliminate all errors of previous such analyses has completely changed his mind – he now claims that global warming is a fact and what’s more – man is the culprit.

Global warming confirmed, man the culprit

A while ago, a major climate study called Berkeley Earth Surface Temperature conducted by physics professor and ex-skeptic of global warming – Richard Muller – was published. The research he conducted to eliminate all the errors of previous such analyses has completely changed his mind – he now claims that global warming is a fact and what’s more, man is the culprit.

Three years ago Muller pointed out that virtually all climate change studies suffered from problems – falsity due to urban heating (this was removed by surveying only in non-urbanized areas), data selection (previously data from about 20% of weather stations were selected, now virtually 100%), poor quality of these stations (now results from better and worse stations were checked separately), and human intervention (now the entire study was automatic).

After eliminating these factors and using modern research methods, it was discovered that the results are much worse than the reports of the United Nations cell, the IPCC (Intergovernmental Panel on Climate Change). Recently, the IPCC came to the consensus that the warming in the last 50 years may have been caused by humans, but that in earlier years, the sun and changes in its activity (which also may have greatly influenced the warming in recent years) is more likely to be the culprit.

Now scientists have been able to take into account virtually all natural factors – volcanic eruptions, solar activity – which have been compared to extremely detailed temperature data. And none of these events could really be linked to the long-term temperature rise in the graph (although in the short term, volcanic eruptions even led to a sharp drop in temperature, due to the release of solar-reflecting aerosols into the atmosphere). They can, however, be clearly linked to increases in human emissions of greenhouse gases.

The new research has covered such a long period of time that it has been possible to virtually eliminate the Sun’s influence on climate – including the end of the so-called Little Ice Age, the period in Earth’s history from the 14th century to 1850.

According to these studies, since the 18th century the global air temperature on our planet has risen by 1.5 degrees (Poland has doubled the average – an increase of 3 degrees), of which by as much as 0.9 degrees since 1950.

Of course Muller – as befits a decent scientist – is still trying to be skeptical. And it is still possible that it is not warmer now than it was a thousand years ago – during the so-called medieval climatic optimum – simply because there is no accurate data from that period.

The full results of the study can be viewed at . What’s more – all the detailed data used in the study and the applications used for analysis were made available there, so anyone who wants to check their credibility or do their own research – can do it.

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